A Short-Step Synthesis of 1,6-Methano[10]annulene-3,4-dicarboximides and Their Benzene-, Naphthalene-, and Thiophene-Annulated Compounds
作者:Mitsunori Oda、Tomomi Nakamura、Miyako Neha、Daisuke Miyawaki、Akira Ohta、Shigeyasu Kuroda、Ryuta Miyatake
DOI:10.1002/ejoc.201402776
日期:2014.9
reagents 8 react with 1,3,5-cycloheptatriene-1,6-dicarbaldehyde (2) under acidic as well as basic conditions to produce 1,6-methano[10]annulene-3,4-dicarboximides 1 in moderate -to- good yields. The reagents 8 react with 3,4-arene-annulated 1,3,5-cycloheptatriene-1,6-dicarbaldehydes 9, 10, and 11 to afford only the Wittig condensation products under acidic conditions but produce the arene-annulated annulenedicarboximides
三苯基正膦试剂 8 在酸性和碱性条件下与 1,3,5-环庚三烯-1,6-二甲酰亚胺 (2) 反应,以中度至- 良好的收益。试剂 8 与 3,4-芳烃环化的 1,3,5-环庚三烯-1,6-二甲醛 9、10 和 11 反应,在酸性条件下仅生成 Wittig 缩合产物,但在碱性条件下生成芳烃环化的环烯二甲酰亚胺使适应。一些二甲酰亚胺和中间体 Wittig 缩合产物的结构通过 X 射线结构分析确定。还研究了二甲酰亚胺的发射特性。